- Have you seen the bread knife? It seems to have gone missing.
When we say that something or somebody went or has gone missing, we mean that it or that person (has) disappeared: the thing or person are not where we expect to find them. It is sometimes considered informal, but is often used in the British media to refer to people who have disappeared, especially in time of war and natural disasters etc.
In the past this use was mainly British, but it seems to be being increasingly used in the American media, and not all Americans are happy about it. In fact so many wrote and complained to GrammarGirl about it, that she nominated it her Peeve of the Year for 2007.
Even the BBC are in two minds about it, apparently. Writing in the New York Times in 2004, the late William Safire quoted from their style guide:
Go missing is inelegant and unpopular with many people, but its use is widespread. There are no easy synonyms. Disappear and vanish do not convince, and they suggest dematerialization, which is rare.
But there doesn't seem to be anything about it in the Guardian or The Economist style guides, nor in the standard usage books.
I decided to have a bit of a closer look.